Which of these is a weakened or dead form of a pathogen that causes an immune response?
A antibody
B vaccine
C antigen
D inflammation
Answer: Vaccine
Explanation:
The weakened or dead form of pathogens that evoke immune response in the body of an organism is known as vaccine. They are used to generate the immune response against pathogens.
It contains an agent that typically resembles the disease causing microorganism, it is often made weekend or used in killed form of the pathogen that generates the same immune response as like of real disease causing microorganism.
The defense mechanism of body is prepared prior to the original exposure to disease causing microorganism.
The weakened or dead form of pathogens that evoke immune response in the body of an organism is known as vaccine. They are used to generate the immune response against pathogens.
What are the different type of vaccine?There are many types of vaccines, such as:
Inactivated vaccines.Live-attenuated vaccines.Messenger RNA (mRNA) vaccines.Viral vector vaccines.Thus, option "B" is correct, vaccine they are used to generate the immune response against pathogens.
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describe the three main properties that scientists measure when they study populations
could someone please help me?
Which of the following statements is true?
A. The Industrial Revolution negatively impacted agriculture.
B. The world's food supply is slowly decreasing.
C. Hybrid plants are always better than the plants they are bred from.
D. The world's production of food is unequally distributed.
Answer:
B. The world`s food supply is slowly decreasing.
Explanation:
Since human population is getting growing little by little, and the need of meat that is necessary to feed the population, is reducing the green areas in the world to be planted by vegetable food. Also the are needed to live, work and move is reducing this areas around the world, as humankind, we have less green areas to plant our food.
Hee Sun drew an electron dot diagram of a silicon atom as shown. In addition to changing the symbol to C, how would this diagram compare with an electron dot diagram of a carbon atom (C)? The dot to the left of the symbol would be removed in the diagram for carbon. The same number of dots would appear in the diagram for carbon. There would be two dots above and to the right of the symbol in the diagram for carbon. The single dots would be replaced with two dots on each side of the symbol in the diagram for carbon
the answer is B) The same number of dots would appear in the diagram for carbon.
Answer: The same number of dots would appear in the diagram for carbon.
Explanation:
Electron dot structure are structure in which dots are used to represent the number of valence electrons of an element in compound. These electrons dots are placed around the chemical symbol of that element.
In electron dot structure of silicon, there are four dots present around the symbol 'Si' because their are four valence electrons present in the valence shell of the silicon atom.
Also in electron dot structure of carbon, there are four dots present around the symbol 'C' because their are four valence electrons present in the valence shell of the carbon atom.
So, the number of dots would appear in the diagram for carbon will be same.
What is a reactant ?
Answer:
Explanation:
A reactant is a substance that take part or begin a chemical reaction and it is consumed during the reaction to form products. Reactant is on the left of the reaction.
For examples during photosynthesis, the reactants are carbondioxide, water and sunlight that give the product glucose and oxygen.
Carbondioxide, water and sunlight start the reaction and are consumed to produce glucose and oxygen.
music question down below
Answer:
C (Third one)
Explanation:
Which of the following elements will have the lowest atomic mass?
Hydrogen: 1 proton and no neutrons
Nitrogen: 7 protons and 7 neutrons
Oxygen: 8 protons and 8 neutrons
Neon: 10 protons and 10 neutrons
Answer:
A because hydrogen has 1 proton and no neutrons yet with everything else it has over 1 and over 1 neutrons
i do flvs and A is right :)
Explanation:
why would competition be considered a limiting factor within an ecosystem
Competition could be considered a limiting factor within an ecosystem because as the populations grow, they will compete for shelter and available resources. Also, as populations become denser, the risk of disease increases. The competition can be considered as a limiting factor within an ecosystem because there is a limited supply of resources that can be used and consumed.
Compare how mean and median are alike? How are they different?
List three characteristics of animals
If a mineral breaks along flat or even surfaces, it has A. Luster B. Fracture C. Cleavage D. Streak
A delta at the mouth of a river is the direct result of
Select one:
deposition of sediment.
an underground river flowing to the ocean.
runoff from sewage.
an ancient glacier that passed through.
How is the population of rabbits related to the population of coyotes? What happened to the rabbits between 1995 and 2000? How did this affect the coyote population?
Scientists have discovered convection currents inside Earth. Explain how these convection currents move and what layer(s) they occur in.
Convection currents in Earth's mantle result from heat transfer from the core, causing mantle material to circulate in a pattern that drives tectonic plate movement. Hot mantle material rises, cools, and then sinks back, creating a continuous convective cycle.
The convection currents in Earth's mantle are movements of the mantle material caused by the internal heat from Earth's core. Think of it like a pot of water on the stove, where the heated water expands, becomes less dense, and rises, while cooler water sinks to replace it, setting up a continuous circulating pattern.
Inside Earth, heat is continuously transferred from the core to the mantle, causing mantle convection. Although the mantle is solid rock, it can flow very slowly over time. These mantle convection currents are the primary driving force behind the movement of tectonic plates. Underlying convection cells can push the plates apart at mid-ocean ridges, where new lithosphere forms, or cause them to converge, with one being subducted, at deep-sea trenches.
As the hot mantle material rises and reaches the surface, it moves horizontally, cools down, and eventually sinks back into the mantle, completing the cycle and forming a convection cell. This cycle is fundamental for many geological processes, including the formation and movement of tectonic plates.
help pls , environmenral science
Which is true about ecosystems?
A. Once defined, an ecosystem is a unit scientists can analyze.
B. All ecosystems are the same size.
C. Biotic and abiotic factors are the same in most ecosystems.
D. All ecosystems are identical.
according to cell theory where do all new cells come from?
how do animal cells obtain food and get energy?
Animal cells obtain nutrients and energy by consuming other organisms. The complex macromolecules from these organisms are then converted into simpler molecules through digestion and absorption. These simple molecules, along with ATP derived from the harvested energy, are then used to carry out cellular functions.
Explanation:All living organisms need nutrients to survive. Animals, unlike plants, obtain their nutrients and energy by consuming other organisms. The food eaten by animals typically consists of proteins, fats, and complex carbohydrates. However, in order for animal cells to function, these macromolecules must be converted into simple molecules, such as amino acids, lipid molecules, nucleotides, and simple sugars.
This conversion process is a multi-step one that involves both digestion and absorption. In the digestion process, the food particles are broken down into smaller components by both physical, such as chewing, and chemical means. Following digestion, these broken down components are then absorbed by the body during the absorption process.
Additionally, all organisms must harvest energy from their environment and convert int into ATP (adenosine triphosphate), the main energy currency in cells, in order to carry out various cellular functions.
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What are 3 ways prokaryotes function differently from eukaryotes?
if a population's per capita growth rate is 0.02 and its population is 100000000 how large will the population be in 5 years
If a population's per capita growth rate is 0.02 and its population is 100000000, the size of the population after 5 years is equal to 110,408,080.
What is the Population growth rate?The population growth rate may be defined as the process that significantly involves the annual average rate of change of population size, for a given state, country, territory, or any geographic region, during a definite time period.
According to the question,
Per capita growth rate (λ)= 0.02 = 1+0.02 = 1.02.
The initial population size is (No) = 100000000.
Time duration (Nt+5) = ?
Now, Nt+5 = (λ)^5 × No = [tex]1.02^5[/tex] × 100000000 = 110,408,080.
Therefore, if a population's per capita growth rate is 0.02 and its population is 100000000, the size of the population after 5 years is equal to 110,408,080.
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Giving Brainly
This drawing shows the internal anatomy of a sponge. What does the arrow in the middle represent?
arrow pointing from inside to outside through the main center large area of a sponge
Question 1 options:
the direction of the sponge's travel through the water
the path food takes through the digestive system of a sponge
the flow of water through the body of a sponge
the path sperm take to fertilize the egg of a sponge
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The correct answer is the flow of water through the body of a sponge.
The sponges are multi-cellular species in which the organ systems like the nervous system, digestive system, circulatory system, and others are absent. They possess a specific feeding system in which they maintain the continuous flow of water through their bodies. This water movement helps them to attain oxygen and food and remove waste.
The movement of water all through the body of the sponge is unidirectional in nature, it gets inside the body of sponge via ostia, and exit through the osculum. With the external pumping of water, the cells found in the walls filter out the food present in the water.
an atom that makes up gold is the same as an atom that makes up silver true of false
atom are mostly empty space true and false
if an atom gains an electron, it will have a positive charge true or false
The nucleus of an atom is the center of an atom and is made up of protons and neutrons
What are atoms made of ?
A. Smaller molecules
B. Smaller Atoms
C. Subatomic particles
D. Proton clouds
In the water cycle, water vapor evaporates into the atmosphere and forms clouds through condensation. What happens in the atmosphere to the water in order for the clouds to form?
Answer:
The correct answer is C)
Explanation:
Which answer correctly explains how the ATP molecule differs in function from the ADP molecule?
a.ATP stores potential energy, while ADP creates immediate energy
b.ADP breaks down energy, while ATP builds energy.
c.ADP represents potential energy, while ATP represents immediate energy.
d.ATP creates energy bonds, while ADP breaks them apart
b and d are completely wrong, leaving a or c
a: ADP requires energy to make ATP, even though the net gain by the release of energy from ATP is > energy required to make ATP from ADP. ATP may be considered potential energy until it is actually used as an energy source
c: ADP has 2 phosphates and to get energy from this, more energy must be put into the system to remove a phosphate than the energy released upon the removal of the phosphate.
ATP has 3 phosphates and to get energy from this, the 3rd phosphate can be easily removed to give this energy. ADP could be considered potential energy in that it only requires the attachment of a phosphate group to make ATP.
to me, there isn't really a clear answer for a or c
if i had to choose, i would go with C
Why is death by predator more natural or right compared to death by starvation
If we removed the producers from this food web, how would it affect the balance of the ecosystem?
A. There would be an increase in consumers and decomposers.
B. There would be a decrease in consumers and decomposers.
C. There would be a decrease in primary consumers and an increase in secondary consumers.
D. There would be an increase in primary consumers and a decrease in secondary consumers.
If the producers are being removed from the food web, then there would be a decrease in consumers and decomposers. The correct option is B.
What are producers?Producers, also known as autotrophs, are lifeforms that produce their own food.
They derive power from chemical compounds or the sun and use water to convert it into usable energy in the form of sugar or food. Plants are the most visible type of producer.
Producers convert water, carbon dioxide, nutrients, and sunlight into organic molecules, which are the foundation of all life on Earth.
Plants and algae plant-like lifeforms that live in water can use solar energy to produce their own food.
If producers are removed from the food web, the number of consumers and decomposers will decrease.
Thus, the correct option is B.
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A book titled Reducing Fats In Your Diet is probly about
A) carbohydrates
B) lipids
C) nucleic acids
D) protiens
living organisms are composed of millions of organic compounds each having a unique structure what element is responsible for this huge diversity of molecules describes and diversity of structures that can be formed and the properties of this element that allows this diversity of form to occur
Answer:
Carbon atom is responsible for this huge diversity of organic molecules.
Explanation:
Diversity of Structures:
The diversity of organic compounds originate due to following properties of Carbon atoms.
i) Catenation: It is the unique property of carbon atoms of self linkage. This property allows carbon atoms to form a long chains.
ii) Multiple Bonds: Also, the carbon atoms can form multiple bonds along with single bonds. Therefore, those organic comounds in which double or triple bonds are present are known as unsaturated compounds while, that containing single bonds are termed as saturated hydrocarbons.
iii) Isomerism: This is very important property of organic compounds in which more than one structure can appear for a same molecular formula. Hence, resulting in increasing the number of compounds for a single molecular formula.
Carbon is the element responsible for the diversity of organic compounds in living organisms.
Explanation:The element responsible for the huge diversity of molecules in living organisms is carbon. Carbon is unique in its ability to form covalent bonds with other atoms, including itself, allowing for the formation of long chains and complex molecular structures.
Carbon's ability to form multiple bonds and its flexibility in bonding with different elements gives it the versatility to form a wide range of organic compounds with unique structures and properties.
For example, carbon can form single, double, or triple bonds with other carbon atoms, resulting in the formation of different types of hydrocarbons such as alkanes, alkenes, and alkynes.
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